Ice chipping or cutting machine



(No Model.)

N. s. CHANDLER. ICE GHIPPING 0R CUTTING MACHINE.

Patented Nov. 11, 1884.

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NORRIS S.- CHANDLER, OF SPRINGFIELD, MASSACHUSETTS.

ICE CHIPPING OR CUTTING MACHINE.

.JPECIFICATION forming part of Letters Patent No. 307,913, dated November 11, 1884.

Application filed May 12, 1884.

To all whom it ntcty "concern.-

Be it known that I, NoRRIs S, CHANDLER, of Springfield, in the county of Hampden and State of Massachusetts, have invented certain new and useful Improvements in Ice Chipping or Cutting Machines, of which the following is a specification, reference being had to the accompanying drawings.

My invention consists of improvements upon the ice cutting machine shown and de scribed in United States Letters Patent, No. 234,397, granted November 16, 1880, to Edwin S. Field, in whichtwo shafts, bearing,respectively, ascries of toothed chipping-disks suitably separated from each other, revolve at unequal speeds by means of a crank and ordinary gearing within a case provided with a hopper above and an opening below for the discharge of ice-chips, and supported upon legs orstandards.

The object of myimprovement is to improve the construction of the disk-shafts and disks, so that the disks can be more conveniently set upon the shafts, and in a better position relatively to each other for doing the work of chipping a block of ice.

In the accompanying drawings, Figure 1 is a vertical section of an ice-chipping machine embodying my improvements. Fig. 2 is a11- other vertical section of the same drawn on the line 2 2 of Fig. 1, and Fig. 3 is a view of one of the shafts separated from the machine.

Referring to the letters upon the drawings, in order to describe the details of construction of the machine in which my improvements are embodied, A indicates the case, B the hopper for receiving blocks of ice to be chipped, and C the opening in the bottom of the case for delivery of chipped ice. I cast this caseand hopper of one piece of metal, except at the ends where openings are left, as shown in Figs. 1 and 2.

D D indicate the shafts,- E, the crank; F and G, gear-wheels connecting the shafts; H, toothed disks placed upon the shafts, substantially such as shown in the said patent; I, sleeves for separating or spacing the disks upon the shafts; K, shoulders upon the shafts, andL jam-nuts, between which and the shoulders the toothed disks and their separating- (No model.)

sleeves are clamped, as also shown in the said patent.

M M indicate castings forming the end plates and legs of the machine. serve as supports or bearings for the shafts, and also to close the end openings in the case, and thus form, when the parts of the machine are put together, an integral part of it. The legs might be formed separately from the end plates; but that is not preferable.

N indicates a guard cast upon one of the end plates and projecting out over the junction of the two gear-wheels. The end plates are screwed, bolted, or otherwise suitably secured to the ends of the case, substantially as illustrated.

Thejournals of the shafts in the bearings O of the end plates may be of equal or of different diameters, because the openings in the ends of the case are large enough to readily admit the shafts and the disks, so that the parts can all be placed, in putting the machine together, with perfect facility.

By reference to Figs. 2 and3 it will be seen that the shafts have two opposite plain sides, which are parallel, but run spirally instead of straight along the opposite sides of the shafts.

By reference to Fig. 2 it will be seen that the central apertures inthe disks are of a shape corresponding to the cross-section of the shafts, as shown in the same figure. The shafts may be formed in this shape with aspiral trend of their oppositeplain surfaces readily by casting or by making them first with separate plain surfaces and then twisting them sufficiently when hot. This shape of the shafts and corresponding openings in the centers of the disks enables the latter to be set upon the shafts so that their teeth will not be in line with the axes of the shafts, but will have a spiral alignment corresponding with the plain sides of the shafts. The consequence is that they will not simultaneously strike and chip the ice in a row, but will follow each other successively all along the shafts, so that the machine will run with more case and regularity. Having described the structure of an icemachine embodying my improvements, I will now specify what I deem to be new therein and These end plates to constitute my invention, so as to distinguish it from all else that is old in my following claim, to wit:

In testimony whereof I have hereunto sub- 10 scribed my name.

In an ice-machine, the combination, with a Y NORRIS S. CHANDLER. 5 shaft having parallel plain sides with a spiral trend, of a series of toothed disks having cen- \Vitnesses: tral openings corresponding to the crossseci J. WV. HUSEY,

tion of the shaft, substantially as and for the l H. O. BLIss.

purpose set forth. 

